· Production and Manufacturing Technology of Petroleum Casing [2019-08-15 HITS：7]
Oil casing; tubing coupling design is mainly from the point of view of changing the structure of the coupling, mainly the development of anti-cor... [READ]

· The Great Role of Oil Casing [2019-08-15 HITS：2]
In the past, when oil exploitation was carried out, simple mechanical tools were used to dig wells, and then oil workers stood on the edge of we... [READ]

· How to classify oil casing? [2019-08-15 HITS：1]
According to the strength of steel itself, casing can be divided into different grades, namely J55K55N80L80C90T95P110Q125V150. Wellbore condition and d... [READ]

· How to measure oil casing? [2019-08-15 HITS：9]
The measurement method of oil casing overcomes the difficulties of large volume of stainless steel pipe, complex production environment and the ina... [READ]

· Performance of Oil Casing and Its Role in Oil Wells [2019-08-15 HITS：10]
Oil casing can be divided into different grades according to the strength of steel itself, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150,... [READ]